TFS140X_06 Datasheet, PDF (1/5 Pages) Vectron International, Inc – Filter specification

Filename: tfs 140x.doc
VI TELEFILTER
Version 1.3
Filter specification
TFS 140X
03.03.2006
1/5
Measurement condition
Ambient temperature:
Input power level:
Source and load impedance:
Terminating impedances *
Input:
Output:
25
0±2
50 Ω
°C
dBm
99 Ω || - 28.3 pF
103 Ω || - 27.2 pF
Characteristics
Remark:
The reference level for the relative attenuation arel of TFS140X is the minimum of the pass band attenuation amin. This value is defined as the insertion
loss ae. The centre frequency fc is the arithmetic mean value of the upper and lower frequencies at the 20 dB filter attenuation level relative to the insertion
loss ae. The frequency shift of the filter in the operating temperature range is not included in the production tolerance scheme
Data
typ. value
limit
Insertion loss
ae = amin
Nominal frequency
f_N
Centre frequency fc (at ambient temperature)
Pass band
PB
Amplitude ripple (peak to adjacent valley)
within f_N ± 7,2 MHz
Bandwidth
1 dB
3 dB
35 dB
40 dB
9
dB
140
MHz
0.2
17,6 MHz
18,5 MHz
21,8 MHz
24,8 MHz
max.
12
140,0
139,60 ... 140,40
f_N
± 7,1
max.
1
dB
MHz
MHz
MHz
dB
min.
min.
max.
max.
17
17,75
24
48
MHz
MHz
MHz
MHz
Relative attenuation
arel
f_{N ...}
f_N ± 8,5 MHz
f_N ± 8,5 MHz ... f_N ± 8,875 MHz
f_N ± 12 MHz ... f_N ± 24
f_N ± 24 MHz ... f_N ± 40
Phase variation within PB
MHz
MHz
0,5 dB
1,5 dB
40
dB
50
dB
6
deg
max.
1
max.
3
min.
35
min.
40
max.
10
dB
dB
dB
dB
deg p-p
Group delay ripple within PB
Absolute group delay within PB
44
ns
777
ns
max.
60
ns
max. 825
ns
Input power level
max. + 10
dBm
Operable temperature range
Storage temperature range
Temperature coefficient of frequency
TCf
-87
ppm/K
- 40 °C ... + 85 °C
- 40 °C ... + 85 °C
*) The terminating impedances depend on parasitics and q-values of matching elements and the board used, and are to be understood as
reference values only. Should there be additional questions, do not hesitate to ask for an application note or contact our design team.
Generated:
Checked / Approved:
Tele Filter GmbH
Potsdamer Straße 18
D 14 513 TELTOW / Germany
Tel: [phone] / Fax: [phone]
E-Mail: [e-mail]
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